Amazon SDE 1 interview questions

written test consist of aptitude,programming and situation and personal thinking questions based question in aptitude were easy to moderate based on some alphabetical logic while questions on programming were moderate level to high level

My interview process was entirely virtual, because of the pandemic. There were 4 interviews in total, after you got through the written round. In the first 2 interviews, 2 DSA questions each were asked. In the third, 2 DSA questions as well as fundamentals were asked. The fourth was a bar-raiser round which seemed like a technical+HR round together.